To determine if 407 is a prime number or a composite number, we simply look at the factors for 407.
If the factors of 407 are only 407 and 1, then we know that 407 is a prime number. Otherwise, 407 is a composite number.
To explain better, if 407 is only divisible by 1 and 407, then it is a prime number, and if 407 is divisible by more than 407 and 1, then it is a composite number.
The factors of 407 are as follows:
1, 11, 37, 407
Therefore, since 407 is divisible by more than one and itself, the answer to the
question "Is 407 prime or composite?" is highlighted in blue below.
composite
Is 408 prime or composite?
OK. Now you know that 407 is a composite number. Use our logic above and see if
you can figure out if the next number on our list is prime or composite before you check your answer.
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